code: def testMono(self):
      # checks that it works for mono signals loaded with audioloader, thus
      # right channel = 0
      inputSize = 512
      numCoeffs = 20
      specLeft = ones(inputSize)
      specRight = zeros(inputSize)
      panning = Panning(numCoeffs=numCoeffs)
      n = 0
      while n < 10:
          result = panning(specLeft, specRight)
          self.assertValidNumber(result.all())
          n += 1
  
file_path: essentia/test/src/unittests/standard/test_panning.py
imports: from essentia_test import *
  from math import log
label_desc: Use image node_id 2 for calling the TestPanning obj's underlying member method code with example usage: obj.testMono() without return types